A Strip of Copper Is Placed in a 1 M $\to$

question 75

Multiple Choice

A strip of copper is placed in a 1 M solution of copper nitrate and a strip of silver is placed in a 1 M solution of silver nitrate.The two metal strips are connected to a voltmeter by wires and a salt bridge connects the solutions.The following standard reduction potentials apply: Ag⁺(aq) + e^- $\to$ Ag(s)
$\varepsilon$ ^$\circ$ =+0.80 V
Cu²⁺(aq) + 2e^- $\to$ Cu(s)
$\varepsilon$ ^$\circ$ = +0.34 V
Which of the following statements is false?

• A)Electrons flow in the external circuit from the copper electrode to the silver electrode.
• B)The silver electrode increases in mass as the cell operates.
• C)There is a net general movement of silver ions through the salt bridge to the copper half-cell.
• D)Negative ions pass through the salt bridge from the silver half-cell to the copper half-cell.
• E)Some positive copper ions pass through the salt bridge from the copper half-cell to the silver half-cell.

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